Liquid and gaseous fuel burner



F. HOWLAND.

LIQUID AND GASEOUS FUEL BURNER.

APPLICATION FILED 050.30. 1919.

153 8 1,955. Patented y 19, 1921.

in b com m U "I J :H

I INVENTOR.

A TTORNEY.

Flinn HOWLAND, or NOGALES, ARIZONA.

mourn AND Gaseous FUEL BURNER."

Specification of Letters Patent. Pgitgnted July 19, 1921 Application filed December 30, 1919. Serial No. 348,281.

To all 1071 am it may concern:

do it known that-I, FRED HowLAND, a citizen of the United States, residin at Nogales, county of Santa Cruz, and tate of Arizona, have invented. anew and useful Improvement in Liquid and Gaseous Fuel Burners, of which the following is a specification.

My present invention relates to improvements in liquid and gaseous fuel burners that are structually designed to adapt them to coal burning or other stove structures, either of the heating or cooking type,-and the invention involves a burner of the type which has an underlying retort in the form of separated and independent chambers beneath the burner nozzle or nozzleswherein the fuel is heated or vaporized before passing to the nozzle,-the heating and vaporization being accomplished by directing the flame in contact with the retort.

The primary object of the invention is the provision of a device of this character, made up in units and each unit comprising an intcgral, one-piece metallic casting, compactly arranged and of neat design, of simple and substantial construction to withstand the action of heat while performing its functions and to render it facile in operation and comparatively inexpensive in cost of production and operation. By the utilization of my invention I am enabled to supply a device of this character that may with facility bG-ELPPllGCl to any stove or furnace constructions without necessity for changing the structure of the fuel burning stove or furnace and without requirement of special tools or expert labor, and the device may, with equal convenience and despatch be used dissociated from such structure if required.

To this end the invention consists in an integral casting involving a reservoir or retort preferably formed with two vaporizing or heating chambers for the fuel and a single piece tubular member integral with the retort fashioned as gas pipes communicating with these chambers and provided with burner nozzles or nozzle openings for the jet or flame, and the invention further consists in certain novel combinations and arrangements of parts as will be hereinafter more fully pointed out and disclosed in the drawings.

In the drawings I have illustrated one complete example of the physical embodiment of my invention, the parts being con;

structed and arranged according to the best mode I have so far devised for the practical application of the principlesof my invention, but it will be understood that I contemplate changes and alterations therein, within the scope of my claims without departing from the spirit of'the invention.

Figure-1 is a side elevation, partly in sec tion, of the fuel burner, detached,embodying the present invention.

Fig. 2 is a top plan view: of the burner.

Fig. 3 is an end view, seen from the left in Fig. 1.

Fig. I is a vertical transverse "sectional view on line 1 4 of Fig. 1. v

In the preferred form of the invention as illustrated in the drawings, the single unitary casting, of suitable metal, embodies the retort l which is longitudinally divided into two heating chambers 2 and 3,"a trans verse, integral, partition 4, centrallylocated "in the retort being provided to form these separated, non-communicating chambers. Preferably the lower portion of the retort is rounded to convenient form, but the upper or top plate 5 of the retort, which is the firing plate, is specially constructed flat with a plane surface and'of required thickness and width, and extends the length of the retort to receive the heated currents or flame from the burner.

The non-communicating gas chambers are bounded at their ends by the intermediate partition and the two end walls 6 of the re tort, and interiorly threaded bosses 7 are provided in the walls of the chambers to receive the fuel pipes'S, a control and regulating valve 9 being supplied to regulate the passage of liquid fuel from the tank (not shown) to the retort. The tankis located as usual in a higher plane than the burner in order that the fuel may be supplied by gravity, and the desired feed of gasolene or liquid fuel to the retort is governed by the valves in customary manner, the valves of course being located outside the stove and readily accessible to the attendant.

In casting the device an integral tubular extension, communicating with the gas chambers is provided, and fashioned as vertical gas pipe 10 and 11, joined by the horizontal portion 12 lying parallel with and above the retort and spaced therefrom at a predetermined and suitable distance. The vertical gas pipes each communicates with agas chamber, and, the bent ends of the pipes, an integral member, are separated by a transverse, interior, partitlon 13, alincd with the intermediate partition 4 in the retort, thus providing each chamber with an outlet-pipe with its discharge portion overlying. and parallel with the retort, or with its complementary gas chamber.

The respective discharge pipes are pro- 7 vided with a nozzle or jet openings 14, 15,

directing the flame as indicated by the arrows to-the firing plate 5 of the retort, and

it will readily be apparent that the gas passcsirom the chambers, through the gas pipes, and thence through the nozzle openings, where it is ignited and directed down wardly in a flame which reaches the firing plate and is then deflected and curled up-.; wardly in usual manner.

In the process of casting the burner a sand core is employed which may be withdrawn through openlngs which are afterward closed by plugs 16 in the horizontal portion "12 of the extension, and this manner of constructing the single unitary structure insures against .blow up of the casting, and results in a smooth. interior finlsh for the retort and its .extension,.and as there are no separable parts to the structure, disconnection of members is eliminated,-and. the dura-.

bility of the burner is enhanced,

Variations may be made in'the-sizeof the burner to suit different purposes, and differing numbers of units may be employed in alinement inthe fire box of the structure to achieve desired results within wide limits, and it will, readily be apparent that the pipes Samay be passed through'the'draft openings of a stove to thebu'rne'r that is additional units may be employed to secure a further increased heat.

In starting the fire the retort may be heatedby burning inflammable material, as

paper, thereon to heat and vaporize a sufficient quantity or" the liquid fuel to be ignited, using-fa sriiall amount of liquid fuel, if desired, to assist in the combustion of the paper, and then the valve may be opened to supply-"from the nozzle opening a continuous stream of gas which is ignited. The blue and white flame thus fills'thefirebo-X of the structure,continuously heating the retort throughthe firing plate thus vaporizing the liquid fuel, as readily understood.

Having thus fully described my invention, what I claim is:

1. Thecomblnatlon in a gaseous fuel burner with a retort fashioned with a plurality of heating. chambers and a fuel supplypipe'for each chamber, 01- a closed tubular extension forming a pair of gas pipes communicatingv with said chambers, said eX- tension having a horizontal portion forming non communioating gas-pipe ends and provided with nozzle openings todirect flame to thelre'tort.

2.. singlepiece,1 cast fuel burner comprisinga retort fashioned with-a transverse interior partition formingseparated chambers and upright, integral gas pipes rising from said retort and communicating with the chambers, an integral horizontal pipe section parallel with the retort and joining said" gas pipes, an integral transverse partition .in the horizontal section, there being nozzle openings nsaid horizontal sect1on at the sides or: the partition, and fuel. supply pipes to said chambers.

The combination with a retorthaving a. flat flame plate and interlor transverse partition Iforming,separated chambers beneath SELlCl plate, gas pipes rising from sald plate each ,communicating with" a chamber, aliorizontal pipe sect1on -]0l.I1111g sald gas pipes and provided with nozzle openings, a

transversepartition in said pipe section betweensaid openings and fuel supply PIPES to SttlCl.Cl1f&IIlbI'S.. I

FRED .nowLaNn 

